I am getting a L28ET engine installed in my 280Z. It is in and running but very rich at idle. Here is everything I have on my car. HIgh pressure fuel pump, 240sx tb port matched, TD06-20G turbo, intercooler, 400cc ~ 440cc injectors, microtech lt-12 cpu, and stock internal. On boost it runs fine. Off boost, (driving around town), it is running so rich it fouls the plugs. I have read about guys running larger injectors that the ones I have, how do they make them work. From everything I have been able to find out, with a programable cpu you should be able to run these larger injectors. What am I and the shop that is installing the engine missing. I have been in touch with the folks I got the cpu from but not much progress has been made. Thanks for the help.
KG78Z